package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.OrderService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.logging.SimpleFormatter;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;

    @Reference
    private SetmealService setmealService;

    @Reference
    private ReportService reportService;

    @Reference
    private OrderService orderService;

    //会员数量统计
    @RequestMapping("/getMemberReport1")
    public Result getMemberReport1() {
        //获取日历对象，得到当前时间
        Calendar calendar = Calendar.getInstance();
        //设置日历对象时间为当前时间之前12个月
        calendar.add(Calendar.MONTH, -12);

        SimpleDateFormat simpleFormatter = new SimpleDateFormat("yyyy.MM");

        //将之前的12个月存入一个集合中，格式为String类型
        List<String> list = new ArrayList<>();
        for (int i = 0; i < 12; i++) {
            calendar.add(Calendar.MONTH, 1);
            list.add(simpleFormatter.format(calendar.getTime()));
        }

        Map<String, Object> map = new HashMap<>();
        map.put("months", list);
        System.out.println();

        //根据日期查询会员数量
        List<Integer> memberCount = memberService.findMemberCountByMonth(list);
        map.put("memberCount", memberCount);

        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
    }

    //获取会员数量统计数据
    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        try{
            //动态获取过去1年的12个月，并封装到集合中
            List<String> months = new ArrayList<>();
            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.MONTH,-12);//add方法用于计算
            for(int i = 0;i<12;i++){
                calendar.add(Calendar.MONTH,1);//add方法用于计算
                months.add(DateUtils.parseDate2String(calendar.getTime(),"yyyy.MM"));
            }
            //根据月份查询对应的会员数量
            List<Integer> memberCount = memberService.findMemberCountByMonths(months);

            Map<String,Object> data = new HashMap<>();
            data.put("months",months);
            data.put("memberCount",memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,data);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {

        //查找套餐以及对应套餐预约数量
        List<Map<String, Object>> list = setmealService.findSetmealCount();


        Map<String,Object> map = new HashMap<>();
        map.put("setmealCount",list);

        //将套餐名单独放在一个集合
        List<String> setmealNames = new ArrayList<>();
        for(Map<String,Object> m : list){
            String name = (String) m.get("name");
            setmealNames.add(name);
        }
        //添加到map集合中
        map.put("setmealNames",setmealNames);

        return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);

    }

    //获取运营统计数据
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){
        try {
            Map<String, Object> result = reportService.getBusinessReport();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,result);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try{
            //获取运营统计数据
            Map<String,Object> result = reportService.getBusinessReport();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            //报表生成时间
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");//今日新会员
            Integer totalMember = (Integer) result.get("totalMember");//总会员数
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");//本周新会员数
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");//本月新会员数
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");//今日预约数
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");//本周预约人数
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");//本月预约人数
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");//今日到访人数
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");//本周到访人数
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");//本月到访人数
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");//前五最热门套餐

            //获取模板文件所在目录
            String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
            //基于提供的Excel模板文件在内存中创建一个Excel表格对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);//获得第三行
            //第六个单元格
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);

            out.flush();
            out.close();
            excel.close();
            return null;
        }catch (Exception e){
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //一周内体检收入统计
    @RequestMapping("getSetmealReportMoney")
    public Result getSetmealReportMoney(){
        try {
            //使用工具类找到当前时间前一周内每天的时间日期
            ArrayList<String> dayList = DateUtils.findDaysToWeek();

            List<String> names = setmealService.findSetmealNameCount();   //套餐名称组

            Map<String, Object> date = setmealMoneyToDate(names, dayList);


            return new Result(true, "体检收入统计查询成功", date);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(true, "体检收入统计查询失败");
        }
    }

    //给定时间内体检收入统计
    @RequestMapping("/getSetmealReportMoneyDate")
    public Result findOrderDate(String value1){
        try {
            String[] split = value1.split(",");
            //拿到每天的日期
            ArrayList<String> dayList = DateUtils.findDaysStr(split[0], split[1]);

            //取出开始和结束时间
            Date sd = DateUtils.parseString2Date(split[0]);
            Date ed = DateUtils.parseString2Date(split[1]);
            //获取当天时间
            Date today = new Date();
            if (sd.getTime()>today.getTime() || ed.getTime()>today.getTime()){
                String over = "timeTOtoday";
                return new Result(false,"时间未到，大局未定");
            }

            List<String> names = setmealService.findSetmealNameCount();   //套餐名称组

            Map<String, Object> date = setmealMoneyToDate(names, dayList);

            return new Result(true, "体检收入统计查询成功", date);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(true, "体检收入统计查询失败");
        }
    }


    /**
     * 获取套餐在区域时间内的金额
     * @param names 所有套餐名
     * @param dayList 区域时间
     * @return 对应套餐在区域时间内的总金额
     */
    public Map<String, Object>  setmealMoneyToDate(List<String> names,  ArrayList<String> dayList){
        Map<String, Object> date = new HashMap();

        List<Map<String, Object>> moneys = new ArrayList<>();

        double sum = 0.0;
        //找到每个套餐名
        for (String name : names) {
            //找到每个套餐的id
            Integer id = setmealService.findnameById(name);

            //当前套餐的金额
            Integer money = setmealService.findSetmealMoney(id);


            //查到当前套餐在时间内的数量
            Double num = setmealService.findSetmealNum(id, dayList);

            Map<String, Object> map = new HashMap<>();

            //当前套餐在时间内的金额
            double znum = money * num;

            sum+=znum;

            map.put("name", name);
            map.put("value", znum);
            moneys.add(map);
        }

        Map<String, Object> map = new HashMap<>();


        //最后将总收入放到集合中
        names.add("总收入");
        map.put("name","总收入");
        map.put("value", sum);
        moneys.add(map);

        date.put("moneys", moneys);
        date.put("names", names);
        return date;
    }

    /**
     * 年龄分布
     * @return
     * @throws Exception
     */
    @RequestMapping("/findByAge")
    public Result findByAge () throws Exception {
        List<Integer> ages = new ArrayList<>();
        //设置计数器，计算各个年龄段的数量
        //0-6为婴幼儿
        int yy = 0;
        //7-12为少儿、
        int sn = 0;
        //13-17岁为青少年
        int qsn = 0;
        //18-45岁为青年、
        int qn = 0;
        //46-69岁为中年、
        int zn = 0;
        //>69岁为老年
        int ln = 0;

        //查询所有会员出生日期
        List<String> birthdays = reportService.findByBirthdays();
        //遍历所有日期
        for (String birthday : birthdays) {
            //将String类型转成Date类型
            Date bt1 = DateUtils.parseString2Date(birthday);
            //使用工具类计算出对应出生日期的年龄
            int age = DateUtils.getAge(bt1);
            //判断年龄的范围
            if (age <= 6) {
                yy += 1;
            } else if (age >= 7 && age <= 12) {
                sn += 1;
            } else if (age >= 13 && age <= 17) {
                qsn += 1;
            } else if (age >= 18 && age <= 45) {
                qn += 1;
            } else if (age >= 46 && age <= 69) {
                zn += 1;
            } else {
                ln += 1;
            }
        }
        Collections.addAll(ages, yy, sn, qsn, qn, zn, ln);


        return new Result(true, "年龄分布查询成功", ages);

    }

/*
    @Reference
    private OrderService orderService;*/

    /*获取时间区域内到诊人数和预约人数*/
    @RequestMapping("/findOrderDateValue")
    public Result findOrderDateValue(String value1){
        try {
            String[] split = value1.split(",");
            //取出开始和结束时间
            Date sd = DateUtils.parseString2Date(split[0]);
            Date ed = DateUtils.parseString2Date(split[1]);
            //获取当天时间
            Date today = new Date();
            if (sd.getTime()>today.getTime() || ed.getTime()>today.getTime()){
                String over = "timeTOtoday";
                return new Result(false,"没死之前，你我皆是黑马");
            }


            //拿到每天的日期
            ArrayList<String> dayList = DateUtils.findDaysStr(split[0], split[1]);

            Map<String, Object> map = findOrders(dayList);

            map.put("dayList", dayList);


            return new Result(true, "到诊人数和预约人数查询成功", map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(true, "到诊人数和预约人数查询失败");
        }
    }

    //获取本周时间区域内到诊人数和预约人数
    @RequestMapping("/findOrderDate")
    public Result findOrderDate() throws Exception {
        try {

            //使用工具类找到当前时间前一周内每天的时间日期
            ArrayList<String> dayList = DateUtils.findDaysToWeek();


            Map<String, Object> map = findOrders(dayList);

            map.put("dayList", dayList);



            return new Result(true, "到诊人数和预约人数查询成功", map);
        }catch (Exception e){
            e.printStackTrace();
            return new Result(true, "到诊人数和预约人数查询失败");
        }
    }



    public Map<String, Object> findOrders( ArrayList<String> dayList){
        Map<String, Object> map = new HashMap<>();

        //查询到诊数量
        List<Integer> orderStatus = orderService.findtoOrderStatus(dayList);
        map.put("orderStatus", orderStatus);

        //查询预约数量
        List<Integer> orderList = orderService.findtoOrderList(dayList);
        map.put("orderList", orderList);
        return map;
    }
}
